CMDY vs COMT

CMDYAiShares Bloomberg Roll Select Commodity Strategy ETF

COMTBiShares GSCI Commodity Dynamic Roll Strategy ETF

In short

CMDY Commodities without the worst of the futures math. CMDY tracks the Roll Select version of the Bloomberg commodity index, where contract choice is written into the rules to ease rolling costs, and charges 0.29% to do it.

COMT The broad commodity fund that skips the Bloomberg crowd. COMT tracks the S&P GSCI Dynamic Roll, weighting commodities by world production instead of sector caps, with a roll method built to blunt the drag of contango.

Stated mandate

CMDY The fund seeks to track an index representing a broad range of commodity exposures, using enhanced roll selection on a total-return basis.

COMT The fund seeks to track the S&P GSCI Dynamic Roll (USD) Total Return Index, which represents a broad commodity exposure with enhanced roll selection across sectors.

Why people hold it

• CMDY The name is the strategy. Enhanced roll selection is baked into the index it tracks, so which futures contract to hold is a rule, not an afterthought.
• 0.29% a year sits in the low-fee tier of broad commodity funds, next to BCI, CERY and BCD, and well under what the category typically charges.
• One ticker, a broad basket of roughly 60 futures positions, run on a total-return basis that counts collateral income alongside commodity price moves.
• Live since 2018 under the iShares roof, and one of the stronger implementations in its broad-basket commodity peer group.

• COMT 0.48% net of a waiver through February 28, 2029 (0.49% gross), which sits below the median fee in the broad commodity futures category.ishares.com
• Weighted by world production rather than sector caps, so it leans toward what the world pumps and digs most, a different mix from Bloomberg-index rivals BCI and CMDY.spglobal.com
• Rather than mechanically rolling front-month futures, the index uses an enhanced roll selection designed to alleviate the negative impact of rolling into contango.spglobal.comspglobal.com 2
• Listed in 2014, with more than a decade of live history and over a billion dollars in assets behind it. Not a thin, untested launch.

Worth knowing

• CMDY Moderately traded rather than a volume monster. Spreads can run wider than the mega-cap index funds, which shows up most on large or hurried orders.
• It is structured as a commodity pool, not a plain stock fund, so the tax paperwork and reporting work differently. Check the details before filing season.
• Distributions land annually or semiannually, not monthly, and the roll rule addresses futures mechanics only. Commodity prices still swing hard on their own.

• COMT This is the full-energy version of the GSCI, not the reduced-energy variant, so energy drives much of the move. Commodity futures are volatile, and the ride here reflects that.spglobal.com
• Below the median, but not the cheap seat: COMB charges 0.25% and BCI 0.26%, neither relying on a waiver, for their own broad commodity futures baskets.
• The commodity exposure sits in a wholly owned Cayman subsidiary run by the same manager. That subsidiary is not registered under the 1940 Act.ishares.comsec.gov

Full CMDY profile⁠

Full COMT profile⁠